Weegy: A package was determined to have a mass of 5.7 kilograms. The force of gravity acting on the package on earth is 55.86N. Solution: F=ma , F = 5.7*9.8 = 55.86N. (More)

Weegy: m = m.v = 120 kg * 60 m/s = 7200 m kg / s. Thus, its momentum is 7,200 kg-m/s. (More)

Weegy: An object has a mass of 120 kg on the Moon. The force of gravity acting on the object on the Moon is 196 N. Sol'n: force = mass * gravity; gravity on the moon is 1/6 that on the Earth = 9.807*(1/6)=1.6345; f = m*g; f = 120*1.6345 =196.14. (More)

Weegy: A 5,000 kg train is traveling at a velocity of 100 m/s and hits another train. The two trains stick together, and the new velocity is 50 m/s. [ 5000 kg is the mass of the second train. Solution: (5000 kg)?(100 m/s) = 500,000 kg?m/s. After the collision, where M is the mass of the second train, the momentum is ... ((5000+M) kg)?(50 m/s) = 500,000 kg?m/s Dividing by 50 m/s and subtracting 5000 kg, we have ... (5000 +M) kg = 10,000 kg M kg = 5000 kg The mass of the second train is 5000 kg. ] (More)

Weegy: The main difference between speed and velocity involves direction. (More)